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a question about cold water tanks

 
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foxy



Joined: 21 Feb 2008
Posts: 38
Location: london
PostPosted: Fri Mar 21, 2008 8:07 pm    Post subject: a question about cold water tanks Reply with quote
hi
I have a large plastic water tank in the loft which feeds the hot water cylinder. I recently changed the cylinder and put a flange joint on top with the view of running a hot water supply straight to a shower.I also plan to run a 22mm supply straight from the water tank to the shower.I had planned to put a power shower,but we get such a good pressure at the shower it will not be necessary now. My question is will this cold water tank be capable of supply both the cylinder and shower? Rolling Eyes
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straker1966



Joined: 06 Jan 2008
Posts: 164
Location: cambridge
PostPosted: Fri Mar 21, 2008 8:27 pm    Post subject: Re: a question about cold water tanks Reply with quote
depends on how big the tank is and how quickly the ballvalve fills it up.

with a gravity fed shower (no pump) you should easily get away with a 50 gallon tank or more,assuming your in an average size house.
there might be a sticker on the tank showing its capacity.

check the water level in the tank as well...the ballvalve should shut off a couple of inches below the overflow so if its well lower than this you might be able to bend the brass ballvalve arm up to give you more water

Last edited by straker1966 on Fri Mar 21, 2008 8:33 pm; edited 1 time in total
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foxy



Joined: 21 Feb 2008
Posts: 38
Location: london
PostPosted: Fri Mar 21, 2008 8:32 pm    Post subject: Reply with quote
thanks for your quick reply do you know the maths for working out the contents of tank ie height x length ect to work out its capacity?
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straker1966



Joined: 06 Jan 2008
Posts: 164
Location: cambridge
PostPosted: Fri Mar 21, 2008 9:05 pm    Post subject: Reply with quote
is it round or rectangular? didnt do maths at at school but i can tell just by lookin at em what size they are.

round ones are usually 50 galls in my experience and rectangle tanks are either 50 gall or 75... no sticker on it? the lid might have size stamped on it.

why dont you just have a good shower and get someone to lift the the lid and see how much waters left? you wont do any damage by letting it run out!
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foxy



Joined: 21 Feb 2008
Posts: 38
Location: london
PostPosted: Fri Mar 21, 2008 9:07 pm    Post subject: Reply with quote
many thanks for all your good advice.i will do
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